Code For Drawing Multiple Lines On Form?

Jun 5, 2011

I want to draw three straight lines on a form. if the following code is correct:

Private Sub Form1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles Me.Paint
Dim Line1 As System.Drawing.Graphics

[CODE]........

Can I use only one variable (Line1) to draw three straight lines?

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Drawing Multiple Lines On A Canvas?

Jun 29, 2012

So I built myself a simple program to work out the kinks of drawing in my programs. I have a button that I press that when the textbox.text reads 1 it then draws a line of a specific height, color and position, the problem is when I click that button again it will crash informing me that...
"Specified Visual is already a child of another Visual or the root of a CompositionTarget."
[code..]

I know where the problem lies, its with the Canvas1.children.add(line), cause its telling me the line variable is already been used or in use on the canvas, I'm just unsure of how to turn that into a solution that will allow me to click the button a hundred times or more without being forced to MANUALLY make a hundred or more individual variables to store the line.

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How to comment multiple lines of code/block of code in VB?

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I am attempting to hard code a richtextbox that has multiline characters upon the Load_Event. However, whenever I use the "&controlchars.newline _ " I get a syntax error and end of statement expected error.

[Code]...

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2008 Count Lines In Textbox With Multiple Lines Using Label To Display The Numbers?

Sep 3, 2009

how to count the lines in textbox1.text (with multiplelines). I don't need to count each character. I only need to count each line from top to bottom in textbox1.text (multiplelines) and I will use Label1 to display the numbers.

example:

1-pauljaones
2-tommyperrry
3-marktoms
4-Jonessmith
5-paulwhite

Obviously this is 5 lines and that's what I need to count.

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Drawing A Lines In A Picturebox?

Jan 18, 2011

I've looked and tried.. and for some reason just don't seem to be getting right now.

I have a picturebox that is 250x500, I want to draw a vertical line from the top to the bottom.

Using gs = pbMap.CreateGraphics
'Do While x.X < 250
'gs.DrawLine(Pens.Red, x, y)

[Code].....

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Drawing Lines From A Point List?

Sep 24, 2010

Ok so im looking at this code and it cant possibly be right but im not sure how to do what i want.I have made a list of n points. I now want to click a button on my form and use the picturebox paint event to draw my lines between the points in the list.From what i can see i have at least two issues with this code. 1. Nowhere in this snippet do i reference the picture boxes paint event 2. I do not think that the loop i have is how to navigate through the list of Points to make my drawings.

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How do I draw straight lines? I'm working on a tic-tac-toe game and I have no previous experience with graphics in VB 2005. The MSDN doesn't exactly do a good job of explaining it. In QBasic it was very simple, you just did:

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I'm Rather new to coding, and It seems like I skipped some of the basics, and jumped in the deep end.I'm having a couple of problems, as I have an ordinary text file called "Orders", and this file stores Orders, placed by users of my program.The Users write to the Orders.txt file, 5 lines per Order, For Example :

Item Name
Item Quantity
UserName (Of user)

[code].....

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[code] With these 3 subs (above) I can track the cursor movement with my window & can draw a horizontal & vertical lines from the location of the cursor. No problems there. Problem is I only want one set of lines ( thus mimiking extended cross hairs) & what I get is persistance. Previous line drawings, cannot be erased out & hence I get a colouring/paint effect in the rectangle. Great if you want that, but I do not want that. How can I negate that effect & draw only 2 lines which follow the cursor location?

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May 23, 2009

show me small lines of code that the users are unable to move to form?

i already search on google and i found some code.. but it compose of many-many lines of code and i cant understand... i want a small lines of code..

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Drawing Parallel And Perpendicular Lines At A Distance From A Point?

Jul 11, 2011

Step 1 - I plot 4 random points on an image in the picture box

Step 2 - I capture the co - ordinates for all the points

Step 3 - I draw a line from point 1 to point 2 (name it line 1)

Queries :

1) I need to draw a line parallel to line 1 passing through point 3

2) I need to draw a line parallel to line 1 passing through point 4

3) Extend the line from both the ends so that I can draw a perpendicular line passing through all the 3 lines so that it becomes a rectangle

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Drawing Dotted Path Lines With Evenly Spaced Dots?

Apr 22, 2012

I have a problem drawing dotted path lines, with evenly spaced dots: I want to be able to draw evenly spaced dots along a path line using points in an array, My issue is not with drawing the path line, with dotted lines, this is easy, but with the spacing of the dots at the start and end of the path line.

In the example I have created, I create a square with 4 points and draw a dotted path.The path starts at the top left corner and finishes back at the top left corner, the dots are evenly placed along the path, except the final dots at the end of the path. (Sometimes the dots are even and other times they are not even).The shapes I want to draw can be any size and any shape, but I have used a square in this example to show the problem I have.I have also attached two pictures showing the dotted path line, 1 with even spaced dots at the start / End and another showing the problem I want to resolve, with not evenly spaced dots at the start / end.The only difference between the two is the point values.

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Oct 19, 2011

I'm doing a web application in which the user must make a series of figures such as rectangles, text boxes and lines, Is something like like google docs draw

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Drawing On Picturebox Vs Drawing On Form?

Feb 18, 2012

I need some code to draw a resizable, draggable rectangular cursor (or selection box) on a picturebox. I found some excellent code (albeit rather old) that does just that, but on a form rather than a picturebox. I have tried converting the code - basically moving things to the picturebox events (Paint, MouseDown, MouseMove etc). It nearly works but leaves a trail behind it when you move or resize the cursor. In other words, the selection rectangle is not being erased before being drawn in the new position.

Is there some fundamental difference between drawing graphics on a form and drawing on a picturebox that would cause this behaviour? Something like, when you invalidate a form and cause a redraw it erases what you did last? If not, then I just need to dig a bit further and work out how the cursor is being erased from the previous position.

Here's the original code that works fine on a form:

Private DragRect As New RectangleF(20, 20, 100, 80)
Private Adornments(7) As RectangleF
Private MouseInRect As Boolean = False

[Code]....

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Is it possible to convert an object form System.Drawing.Graphics to System.Drawing.Image?

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I want to draw string in multiple lines and and I want to know how many lines given string will take. I am using following method.

[Code]...

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Interface And Graphics :: Drawing Dotted Path Lines, With Even Dots Along The Path Line?

Apr 13, 2012

Problem drawing dotted path lines, with even dots along the path line.I want to draw a path line that can be any shape (square, round, outline etc), and along this path line I want even dots to appear.

I also want to be able to resize the shape (as in the example attached)This is very easy to do using "DrawPath" and defining points for the path and using a pen defined as dots.The problem I have is I want the dots to be evenly placed along the path, on any shape or size I draw.In the example I have created, I create a square with 4 points and draw a dotted path.There are 2 buttons that allows me to resize the square (larger or smaller) this helps show the problem more clearly.

The path starts at the top left corner and finishes back at the top left corner, the dots are evenly placed along the path, except the final dots at the end of the path. (Sometimes the dots are even and other times they are not even).The shapes I want to draw can be any size and any shape, but I have used a square in this example to show the problem I have. point me in the direction I need to go that allows me to draw the dots and give the impression that they are even all along the path, for all shapes and sizes.

In the pictures below if you change the size of the shape, one will have even looking dots, the other will not.

[Code]...

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Drawing Multiple Images In Picturebox?

Oct 7, 2009

I got down the drawimage part. The problem I am having, is when I draw another image, it replaces the old one. Here is my

vb
Public Class Form1
Dim PicPoint As Point

[Cod].....

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Apr 22, 2012

I am trying to create a sort of code library in visual basic where the form displays a list box of certain project files in vb that i have made in the past and when clicked, launches the .exe files of those visual basic program project files.I know it does not work the same way as writing/ reading text files to vb and it seems as simple as 'on click, launch .exe of selected string "vb program 1" and so on. I am having trouble getting started on this one. Im sorry I cannot provide any starter code bc I only have a basic understanding of in/out text files which wont work the same way with .exe

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Drawing Dotted Path Lines, With Even Dots Along The Path

Apr 12, 2012

I want to draw a path line that can be any shape (square, round, outline etc), and along this path line I want even dots to appear. I also want to be able to resize the shape (as in the example attached) This is very easy to do using "DrawPath" and defining points for the path and using a pen defined as dots. The problem I have is I want the dots to be evenly placed along the path, on any shape or size I draw.

In the example I have created, I create a square with 4 points and draw a dotted path. There are 2 buttons that allows me to resize the square (larger or smaller) this helps show the problem more clearly. The path starts at the top left corner and finishes back at the top left corner, the dots are evenly placed along the path, except the final dots at the end of the path. (Sometimes the dots are even and other times they are not even).

The shapes I want to draw can be any size and any shape, but I have used a square in this example to show the problem I have. I need to to draw the dots and give the impression that they are even all along the path, for all shapes and sizes. [Code]

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VS 2008 : Drawing With Multiple Colors In A PictureBox?

Apr 13, 2011

I'm basically trying to make a simple, easy-to-use, paint program. I seem to be having problems with using multiple colors in the PictureBox1_Paint option. It draws the graphics but when you change the brush color and click in the picturebox it changes the colors of the previous graphics to the color you are currently trying to use. I need it to allow multiple colors.

Here's the code that I'm currently using..

Imports System.Drawing.Drawing2D
Public Class DynosPaint
Inherits System.Windows.Forms.Form
Private IsFormBeingDragged As Boolean = False

[code]....

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VS 2008 Drawing With Multiple Colors In A PictureBox?

Apr 13, 2011

I'm basically trying to make a simple, easy-to-use, paint program. I seem to be having problems with using multiple colors in the PictureBox1_Paint option. It draws the graphics but when you change the brush color and click in the picturebox it changes the colors of the previous graphics to the color you are currently trying to use. I need it to allow multiple colors.

Here's the code that I'm currently using..

Imports System.Drawing.Drawing2D
Public Class DynosPaint
Inherits System.Windows.Forms.Form

[code]....

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Mar 15, 2011

I need to draw a bitmap background with one or more moving bitmaps in the foreground; something like a chessboard where pieces move across it. I use a timer-tick event to redraw the background and then draw the relocated foreground image like the code below. But I get flicker, even though I set the form to use double-buffering. The culprit seems to be redrawing the background to refresh where the foreground images used to be; no flicker if I replace the background DrawImage with a simple Graphics.Clear. I think what I want to do is draw the background, and the foreground bitmap(s), in memory and then render it all. I used to do this with double-buffering, BitBlt, and .Refresh in VB6 but I haven't found the equivalent in VB2010. This must be a pretty common graphics requirement; what's the trick to it?

Dim Gfx As Graphics
Me.SetStyle(ControlStyles.AllPaintingInWmPaint Or ControlStyles.UserPaint Or ControlStyles.OptimizedDoubleBuffer, True)
Dim rectBrd As Rectangle 'use as clipping region for drawing

[Code].....

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I have the following code, my employer wants me to reduce the lines of code to do the job.

Private Function getClientSheetNames(Optional ByVal type As String = "all") As List(Of String)
If type = "extra" Then
Return clientExtraSheetNames
End If

[code].....

I am not able to make out how can I cut the lines and have the same functionality !Are there any vb.net construct that can reduce the loc by better implementation ?Can I have a new function to be called from getClientSheetNames and getDevSheetNames that will can implement code resue ?Can I introduce polymorphism in a possible new function ?

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I am trying to figure out a way of combining the below Dim statements into one line and maybe also combining Return dblResult into there. currently it is three lines and I have been told that it is possible but kind of lost of how to do it

[Code]...

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I have a string STR="CYHZ 262338Z 2700/2724 27012G22KT P6SM BKN040 TEMPO 2700/2710 5SM -SHSN BKN015 BECMG 2702/2704 28015G25KT FM271000 28018G28KT P6SM BKN040 BECMG 2722/2724 27012KT RMK NXT FCST BY 270300Z"

I want to put the new line characher before these words in the string(TEMPO, BECMG, FM, RMK) so that the output string look like this

[Code]...

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Feb 5, 2009

So i am working on something for school. And we have to make a program that has 2 buttons, 2 text boxes used for input and a label used for output. One button is New Customer wich displays this in the output label (named totalLabel)

Public Class Form1
Private Sub newButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles newButton.Click

[Code].....

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I'm creating a button on my project that when clicked it will enter the information in the comment "" area and store it into the clipboard to be pasted.

My issue is whenever I try to put the multiple lines in the comment field I get a syntax issue.[code]....

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